Bulletin board



Dec. 30, 1924,. A 152mm W. C. ACHTERKIRCH T AL BULLETIN BOARD Filed Aug.` 28, 1924 2 srieeiS-sheet 1 a f7 /a Von/57 W Z sa uw@ .wkf

1924 2 Sheets-Sheet '2 Dec. 30, l 924.

W. C; ACHTERKIRCH ET AL BULLETIN BOARD Filed Aug. 28.

Patented El?,

wiLLrara c. aonrnnninci-r, on oernvin, erin animer n. Man-sn, or Altona,

' MINNESOTA.

BULLETN BOARD.

.Application filed August 28, 1924. Serial No. 734,718.

To all whom t may concern:

Be it lrnown that we, lli/ILLIAM C. Aoi-mns limon and ERNEST l?. Milesi-r, citizens of the `United States. residing` at Ogilvie and Anoka, respectively, in the counties ot' lianabec and etnoka, respectively, and State oi Minnesota, have invented certain new and useful improvements in Bulletin Boards, of which the following' is a specification, reference being),` had to the accompanying` drawings.

rlihis invention relates to bulletin boards and has Yfor an important object thereof an improvement of the structure shown in the prior patent of William C. Achterlrirch, UIv',t-1;,252,6i0, issued January 8, 1918.

The primary objects oit' the present invention are to reduce the cost oi construction of the bulletin board illustrated. in said patent, to produce a device loi this character which may be very readily and durably constructed 4and which is' not liable to be damaged by handling' on the part orl inquisitive inspectors.

El further object oi' the invention is to provide a device ot' this character which may be readily altered so as to increase or decrease the number of holding lingers which are employed thereon.

llheseandother objects we attain by the constructionshown in` the accompanying drawings, wherein ttor the purpose ot illustration is shown a preferred embodiment olf our invention and wherein l Figure 1 is afront elevation of a bulletin board constructed in' accordance with our invention; y

Figure 2 is a vertical sectional view therethrough; I

Figure 3 is aV section on the line 3-3 oi ll`ieure 2' vliioure 4 is Figure 1;

Fig-ure 5 is a perspective oi the lower end oil the retaining arm showing* the sliding latch.

Referring' now more particularly to the drawings, the bulletin board includes a rec.-

section on the line 4 4 et taneular frame 10, a back 11 for the frame,

inafter be more fully described. The side members 15 may be ci any desired construction, although they are preferably constructed so that they resemble, in appearance at least, the top and bottom of the frame.

The top member 13 of the frame lis formed from sheet metal 'formed to provide a iront face 16 which is offset adjacent its upper end, as indicated at 17, to provide an inte rior upwardly directed shoulder intermediate its ends. The lower end oi' the front member 16 has an inwardly extending flange 18, the terminal portion of which is bent baclr upon itself, as indicated at 19, and then upwardly in spaced relation tothe bach face of the front member, as indicated at 20, to provide between the back tace ot the front member and this terminal portion a groove 21, the upper end oi which is open. F rom the upper edge oit the Jfro-nt member a rearwardly directed liange 22 extends, the rear end of which is bent downwardly, as indicated at 23. rFhis down-bent portion is less than the distance between the upper end oi the front section and the offset 17 tor a purpose presently to appear. The lower vframe member 14 h as a front member 24, the

upper end of which is provided with an inwardly directed 'Flange 25, the rear end of which is reverted upon the upper surface of the flange in spaced relation thereto, as indicated at 26, for a purpose presently to appear. rlfhe lower end of the front member 24 of the lower `trame member is provided with a rearwardly directed flange 27 the terminal portion of which is upwardly bent. as indicated at 28. The side members 15. as sta-ted before, may be oi any desired constructionu The 1front members 29 thereof in all instances will preferably be provided at their inner edges with a rearwardly directed flange 80, the rear edge of which is reverted in spaced relation to the flange, as at 31.

The back 11 has at its sides, top and bot tom rearwardly directed ianges 32, the flange 32 at the bot-tom engaging between the flange and its reverted portion 26 oiE `the bottom member, while those at the sides engage between the flanges 30 and their reverted portions 31 to limit the rearward movement of the back within the trame. The upper ede'e of the back has its flange 32 in approximate alignment with the 'flange 18 of the lower end of the 'front member 16 of the top frame member. llVhen the back is in position a retaining strip 33 is'applied to the upper end of the lower frame member, this retaining strip having v at its upper end a horizontally and rearwardly directed flange 34 overlying the flange 25 of the bottom frame member in spaced relation thereto. Adjacent its rear end the flange 34 of the retaining strip is offset downwardly, as at 35, so that its terminal portion 36 lies against the upper surface of the flange 25 and extends slightly into the space between the flange 25 and its reverted-portion26. The free end of this reverted portion 26 is preferably somewhat closer to the flange 25 than the attached end thereof and in the formation of the flange 32 of the lower end of the back member 11 its rear edge is preferably7 reverted, as indicated at 37, thus increasing the thickness of the flange so that when the rea-r end of the retaining strip extends beneath the flange of the back member, as it does when in position, this flange is elevated to such a point that it cannot escapefrom the restricted mouth of the slot in which it is engaged. Thev offset portion of the retaining strip parallels the back member 11 in spaced relation thereto for a purpose presently to appear.

What we term a cage 33 is provided, this cage being of slightly greater lengt-h than tion of the cage.

rthe upper frame member.

the width of the back and consisting of two sheet metal sections 39 and 40, the section 39 being hereinafter referred to as the rear section and the section 40 as the forward secrlhe forward section of the cage is formed to provide a vertical seotion 41 which is adapted to enter the groove 21, Vformed by the terminal 2O and front wall 16 of the upper frame member, and is of slightly greater' length than the. depth of such groove. At the upper end of this vertical section the plate is horizontally bent, as at 42, then vertically bent, as at 43, the upper end of this vert cal portion having a horizontal forwardly extending flange 44,- the forwardedge of which lies in the same plane as the front face of the vertical portion 41 and is separated from the lower end ofthis vertical portion 41 a distance'sligl'itly less than thedistance between the offset 1? and the lower end of the front plate 16 of The rear cage member 39 is formed from a sheet of metal benty to provide a vertical portion 45, the lower end of which is provided with a forwardly directed flange 46 of the same width as the flanges 32 of the back member 11 and designed to receive and support the upper edge flange of this bach men'iber. The upper end of this vertical portion is offset, as at 47, the offset section 48 abutting the vertical portion 43 of thefront plate 40 'and being secured thereto by rivets, as indicated One or both of the members have secured thereto at `the ends'thereof end plates 51, within which vare formed openings to receive a shaft 52 which is of greater length than the distance between the end members and preferably but slightly less than the distance between the side flanges 50 of the side frame members 15. The upper end of the offset portion 43 is vertically separated from the lower end of the vertical portion 41 a distance slightly less than'the distance from the upper end of the vertical portion 2O and the adjacent section of the flange 22, so that when theupper end of the offset portion 43 is engaged witlrthe flange 22 the lower end of the cage is disengaged from the groove 21.

Upon this shaft, between the end mem? bers, are mounted sleeves 52a in any desiredV number, each sleevehaving secured theretov an arm 53 formed of resilient material and arcuately curved; The sleeve isv attached lto the arm so that the upper end thereof projects upwardly a `distance sufficient to engage against the rear face of the vertical portion 43 of the front cage member 40, so that. the movement of' the yupper end lofthe arm with the sleeve as a pivot is limited.y

In this position the lower ends Vof the arms normally assume a position such yas shown in dotted lines in'Figure 2 with their ends in spaced relation tothe lower end of the back 11. that they may be moved rearwardly against the back above the surface of the retainer strip 33 and have mounted thereon sliding latches 54, which when moved toward the free end of the arm'will engage behind the shoulder formed by the offset 35 of the retafner strip topmaintain the lower end of the arm in engagement with the opposed surface ofthe bach member 11. Because of its curvature and resiliency, the portions of the arm intermediate this lowerl end and the pivot will naturally lie closely against: the surface of the back to maintain in pon sition, between then'iselves andthe back, posters or other sheets to be exhibited upon the bulletin board. VvThe shaft, when the cage is removed, may be slid'out of the cage and further sleeves 52a and arms 53 applied thereto as desired. This removal of the cage can only be effected from the rear of the bulletin board which will` preferably be secured againstv some flat surface.

These arms are of such length inerte? As a means for attaching the bulletin board to such a flat surface, we preferably provide headed retaining members 55 extended into the surface., indicated at 56, and having bebeing left between the Washers and the surface 56 so that the upturned flange Q8 et the lower lira-me member liet may be inserted therebetween. To maintain the upper trame member in position, we employ attaining brackets 5?, each consisting` of strip metal, one end 58 of which is vertically i ranged and ot length equal to the distance between trie lower tace `ot the upper flange 22 off the upper frame member and the upper face of the offset portion l thereof. 'lo the lower edge of this portion is connected horizontal portion 59 which is of a length equal to the dista-nce between the rear' tace of the upper portion of the front plate 16 ofthe upper trame member and the opposed portion oit' the upper end ot the offset @Q8 ol the rear member of the cage. itt this point the bracket is offset upwardly, as indicated iat '50, so that its upper' face abuts` the lower end ot the downturned terminal 23 of the lia-nge E22 ci' the upper trame member until 1t passes beneath thistrame memberwhen it is bent sharply upwardly, as 6l, and `has `formed therein an opening for the reception of a securing element 62 whereby it maybe secured to the sur-tace 56. ll two ot' these brackets are employed, is preferably the case, theL brackets are slid into position by engaging them with the upper frame member beyond 'the ends ot the cage and then sliding them toward the center of the upper frame member'a desired distance. l ln this position they oannot escape because of their coaction interlitting with the cage member and upper frame member and will remain in proper position until the securing elements are inserted. To remove the bulletin board it is merely necessary to remove the securing,` element of one bracket and to slide the bulletin board `to one side or the other until the remaining bracket passes the end ot the cage when the bulletin board may be removed therefrom as from a hook.

neath which the flange at the lower end of the back engages to prevent upwardmorement of the back, means carrledby thel lower `member and removable neath the heads thereo'l washers 35, a space frame member :t preventing; di ment of said. `lian tron' ii neath saik eng iV ulti.-

predetermi.l movement thereoiE with tion to the upper traine member and having a portion engaging beneath the iin-nge at the upper end oit' the bach member to pioverdown'ivard movement of the back member. and bracli'ets remo Jibi" ewjaged 'i said upper Jrame member n' A LJortin the bulletin-board prevent; b' snch predeermined movement olf the cage w1 relation to the upper frame in 2. ln a bullet-in .i upper and lower frame therefor, the baclr havi lower ends rearwardly es, the lower trame member liavinp' portion beneath which the ilange at the lower' end et the baclrrengages to prevent upward move ment et the bacln mei s carded by the lower frame member tor pre-rei "it-3' disengagement oft said flange from beneath said port-ion, a. cage engaged with 'the upper tranne member and removable therefrom upon a predetermined movement thereof with relation to the upper 'trame member and having a portion engaging beneath the llange at the upper end oit' the bach member to prevent downward movement of the oacl-z inember7 brackets removably engj ged -with said upper frame member for supporting' the lrulletin board preventing' such predetermined movement of the cage with relation to the upper iframe member; and means carried v said caire engaging the back meml'ier to i vent forward movement of the r thereof and maintaining` in en the back member a bill or posted.

3. ln a bulletin hearth i. upper and lower ir" 'n therefor7 the back ha i it; at its upper lower ends rearwardljgf directed 'fiang l lower trame member hai/*ing a portion beneath which the tlai at the l. 'er end ot the back ene'ages to prevent .iard more ment ot the baci;7 means carried by the low/M.' frame member for preventing disenp ment ot said flange from beneath said tion7 a cage engaged with the upper ti me nember and removable l r upon a predetermined moverme with re* lation to the upper i and hanVY- ing portion engagi 5 oeneath the llanpje at the upper end ot the bach member to prevent downward in vement oi?` the be member, brackets removabl j' ged with said upper trame menthe" importing the bulletin board proventi s i predeter mined `movement oit the t witl'i relation to the upper frame ineniber.A 'and n'ieans carried by said cage engagingl the back member to prevent forward niovenient of the upper end thereof and maintaining in engagementA with the back member a bill or the like to be posted, comprising a shaft carried by the l cagemember', ysleeves mountedfupon said lshaft and having arms attached thereto,

said arms being arcuately curved and nortion, a cage engaged with the upper frame member and removable therefrom upon a predetermined movement thereof with relav tion to the upper frame member and having a portion engaging beneath the flange at the upper end of the back member -to pre- 'ventgdownward movement of the back mem ber, brackets removably engaged with said upper frame member for supporting the bulletin board preventing such predeter-k mined movement of the cage with relation to the upper framemember, means Carried by said cage engaging the back member to prevent forward movement of the upper .end thereof and maintaining in engagement with the back member a bill or the like to be posted, comprising a shaft carried by the cage member, sleeves mounted upon said shaft and having arms attached thereto, said arms being arcuately curved and normally engaging against the upper end ofthe back member only, said means for retaining the flange of the lower end of the back member beneath said portion of the lower .frame member including a part opposing the back member in spaced relation thereto, and means at the lower end-s of the arms and shiftable upon the arms to engage between said portion of said retaining means and the back and to maintain the arm flatly engaged with said back member.

5. In a bulletin board, a frame including upper and lower frame members and a back therefor, the back having at its upper and lower ends rearwardly directed flanges, the llower frame memberl having a portion beneath which the flange at the lower end of the back engages to prevent vupward movement of the bach, means carried by the lower `frame member for preventing disengagement of said flange from beneath said portion, aV cage engaged with the upper frame member and removable therefrom upon a predetermined movement thereof with relation to the upper frame member and having a portion engaging beneath the `'flange-at the upper end ofthe back member. to prevent downward l movement 'of the ing the bulletin board preventing such pre-` determined movement of thecage with relation to the upper frame member, and means,

carried by said cage.. engaging the back Vmember to prevent forward vmovement of the upper end thereof and maintaining in engagement with the bach member a bill or the like to be posted, comprising a` shaft carried by the cage member, sleeves mounted upon said shaft and ,having arms attached thereto, said arms being arcuately curved and normally engaging againstxthe upper end of the back member only, said sleeves being slidable upon theV shaft and removable therefrom when the shaft is removedl from the cage, said shaft t being removable from the cage when lsaid cage is removed from the upper frame member whereby to permit ready installation of additional sleeves and arms upon 'the shaft.

6. In a bulletin board, a frame including upper and lower frame members and a back therefor, the back havingu at its upper and lower ends rearwardly directed flanges, the Y lower frame `member having a portion be-V neath which the flange at the lower. endV of, the back engages to prevent upward movement ofthe back, means carried by the lower frame member for preventing disengagement of said flange from beneath said portion, a `cage engaged with thenpper frame member and removable therefromV upon a predetermined movement thereof with relation to the upper frame member 1 and having a portion engaging beneath the' lia-nge at the upperk end of the back member r to prevent downward movement of the back member, a shaft mounted within the cage and extending transversely of the frame, and means carried by the shaft and depending therefrom engaging the upper end of the back member to prevent forward movement thereof and positionable against the front surface of the back member to maintain in engagement with the'back member a billor the like to be posted. v i

7. In a bulletin board, a frame including upper and lower frame members and a back therefor, the back having atr its upper and lower ends rearwardly directed flanges, the lower frame member having a portion be neath which the flange at the lower end of the back engages to prevent upward movement of the back, means carried by the lower frame member for preventing disengagement of said flange from beneath said portion, a cage engaged with `the upper frame member and removable therefrom upon a predetermined movement thereof with relation to the upper frame memberand'having a portion engaging beneath the `flange at the upper end of ,the44 back memberjto prereame? vent downward movementol the back member, a shaft mounted within the nage 'and extending transversely of the frame, and means carried by the shaft and depending therefrom engaging the upper end of the back member to preventforward movement thereoic and positionable against the front surface of the back member to maintain in engagement with the back member a bill or the like to be posted, Comprising arms rotatably and longitudinally shiftable upon said shaft, said shaft being1 removable .from said cage when said cage is removed to permit the removal or addition of arms thereto.

8. In a bulletin loo-arch a :trame including upper and lower Jframe members and a baol therefor, the back having` at its upper and lower ends rearwardly directed flanges, the lower frame member having a portion beneath which the flange at the lower end of the back engages to prevent upward movement of the back, means carried by the lower frame member for preventing disengage ment of said flange from beneath said portion, a cage engaged with the upper frame member and removable therefrom upon a predetermined movement thereof with relation to the upper frame member and having a portion engaging beneaththe liange at the upper end of the back member to prevent dovf'fnward movement oft the back member, a shaft mounted within the cage and extending` transversely oi the frame, means carried by the shaft and depending therefrom engagrgingl the upper end of the baol member to prevent forward movement thereof and positionable against the 'liront snrface of the back member to maintain in engagement with the haelt member a bill or the like to be posted, said arms being` arcuately curved and having their lower ends disposed in advance of the back member, the arms being `formed of resilient material to permit engagement oil suoh lower ends with the back member, and means carried by said arms and operatively engageable with the lower frame member to maintain the lower ends of said arms in engagement with the back.

In testimony whereof we hereunto aflix our signatures.

WILLIAM C. ACHTERKIRCH. ERNEST B. MARSH. 

